CVE-2026-106136: Progress KendoReact Chat component cross-site scripting

CVE-2026-106136 · Severity: medium · CVSS 5.4 · Published 2026-11-06

Progress KendoReact is a library of React UI components used to build web applications. A cross-site scripting (XSS) vulnerability in the Chat component allows an attacker who can supply chat messages to execute arbitrary JavaScript code in the user's browser when the user clicks an "openUrl" quick action. This could lead to session hijacking, credential theft, or unauthorized actions taken on behalf of the user.

Technologies: Progress Software KendoReact. Vendors: Progress Software.

Quick answers

Is CVE-2026-106136 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-106136 being exploited in the wild.
How severe is CVE-2026-106136?
Medium severity, with a CVSS score of 5.4, published 6 November 2026.
Which products and versions are affected?
Progress Software KendoReact 0.6.0 through 16.1.0.
Is there a fix for CVE-2026-106136?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-106136 attacked?
It is attacked over the network, in a software library.
Am I affected by CVE-2026-106136?
Check whether you run Progress Software KendoReact at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

The Chat component (@progress/kendo-react-conversational-ui) fails to properly sanitize URLs in openUrl quick actions, allowing an attacker to inject malicious JavaScript that executes when a user clicks the action. The vulnerability affects versions 0.6.0 through 16.1.0 and requires the attacker to have the ability to supply chat messages, with user interaction (clicking the action) needed to trigger the exploit. A fix is available in versions after 16.1.0.

Affected products

  • Progress Software KendoReact 0.6.0 through 16.1.0

Timeline

  • 2026-11-06: disclosed

References

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